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ANSI S1.21

1972 Edition, July 11, 1972

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METHODS FOR THE DETERMINATION OF SOUND POWER LEVELS OF SMALL SOURCES IN REVERBERATION ROOMS



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Product Details:

  • Revision: 1972 Edition, July 11, 1972
  • Published Date: July 11, 1972
  • Status: Not Active, See comments below
  • Document Language:
  • Published By: American National Standards Institute (ANSI)
  • Page Count: 28
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

Scope and Purpose. This standard describes a direct method and a comparison method for determining the sound power level produced by a source. This standard contains test room requirements, source location and operating conditions, instrumentation, and techniques for obtaining an estimate of the mcan-squarc sound pressure from which (lie sound power level of the source in octave or one-third octave bands is calcu-lated. It is intended to provide techniques for acous-tical measurements that can be used in test codes for particular types of equipment.